The Jews were Rebellious instead of Appreciative when They gained Victory

Allah admonished the Jews for avoiding Jihad and not entering the holy land as they had been ordered to do when they came from Egypt with Musa. They were also commanded to fight the disbelieving `Amaliq (Canaanites) dwelling in the holy land at that time. But they did not want to fight, because they were weak and exhausted. Allah punished them by causing them to become lost, and to continue wandering, as Allah has stated in Surat Al-Ma'idah (5). The correct opinion about the meaning of, `the holy land' mentioned here is that it was Bayt Al-Maqdis (Jerusalem), as As-Suddi, Ar-Rabi` bin Anas, Qatadah and Abu Muslim Al-Asfahani, as well as others have stated. Musa said,

يَاقَوْمِ ادْخُلُوا الاٌّرْضَ المُقَدَّسَةَ الَّتِى كَتَبَ اللَّهُ لَكُمْ وَلاَ تَرْتَدُّوا

This verse is a continuation of the preceding verse. Allah had commanded the Israelites to keep, while entering the city, repeating the word Hittatun حِطَّةٌ (which indicates repentance for one's sin and the request for pardon). But they replaced this word with another phrase by way of mockery, and started saying, Habbatun fi sha` irah (grain in the midst of barley), or Hintatun حِطَّةٌ (wheat).

The punishment which descended on them was plague that wiped out seventy thousand men (Qurtubi). In passing, we may recall a hadith which says that plague is a punishment for the disobedient, and a blessing for the obedient.